Dynamic Product Pricing

[rkozora]

I am completely new to Miva Merchant, but I need to find a way to process transactions by providing a dynamic price. The app I am developing will allow residents of a city to pay their property taxes online. We have the lookup working, connecting via web service to our backend systems. Now we need to complete the transaction with Miva Merchant, but we need to pass in the price in real time. We have about 30,000 properties being billed, and the penalty and calculation system on our backend is way too advanced to synch with our products database every day.

Basically we need to provide transactions for the purchase of services with a variable price, not goods with a set price.

Once again being completely new to Merchant, I considered programmatically inserting the current resident's bill into the products table, then deleting it once the transaction completed.

I also considered making a property tax product with a price of 0 then altering either the shipping and handling or the tax on it to match what the bill is.

Will either of these two ideas work? If so can someone explain how to go about it? If they won't, does anyone have any other suggestions or any experience doing something similar to this?

Thank you all for even reading this post and for any help that you may offer!

Bobby

[wcw]

You could use the External Product Purchase module at
http://www.emporiumplus.com/go/wcw/PROD/1AA/1AA00078

To see how it can work, click this link to add a fictitious product to the basket that costs $510.75
http://www.emporiumplus.com/winner/wcw/Fantasia/2340238423/510.75